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MTT assay on GTE after the application of periodontal gels and LPS for 72 h. Negative control (C−) was obtained from culture media of GTE treated with PBS that was set at 100%. Positive control (SDS 5%) was obtained from culture media of GTE treated with 10% SDS diluted in PBS (1:1). Values represent the mean ± SEM (n = 3). Results were statistically compared by Kruskal-Wallis.
